Bed lock



April 17, 192s. 1,666,424

' L. N. LUMB BED LOCK Filed July 30, 1925 INVENTOR.

Patented Apr. 17, 1928.

UNITED STATES LOUIS N. LUMB, OF ASTORIA, NEW YORK.

BED LOCK.

Application filed July 30, 1925. Serial No. 46,944.

This invention is a bed lock adapted for use on metal bedsteads which,as a general rule, embody a head board and a. foot board connected byside rails of angle cross section. Both the head and foot boards embodyuprightposts and to these posts the opposite end-s of the side rails areconnected by suitable demountable attaching means, known to the'tradeasv locks. The bed posts are made hollow and of metal and permanentlysecured thereto are attaching memberswith which engage cooperatingattaching'` members mounted on the opposite endsA of vthe side rails.

The object of the present invention Ais to provide av simple andconvenient bed lock which will secure the side rails to the bed post ina perfectly rigid manner andy in such way as to preclude theirinadvertent disengagement, but to permitof the manual assembling ordismantling of thebed withoutv the employment of tools or without .theexcrcise l of, any mechanical skill or ingenuity.

l In other words it is the object of this invention to providea noveland efficient bed lock. which even the most uninitiated can readilyassemble and dismantle.

'A further object of the invention is to provide a bed lock soconstructed that side l rails may be associated with the corner posts ina manner to adapt said rails to support either the common flatspring ora spring of conventional box type.

Vith these considerations in mind, the invention in its preferredpractical form embodies a wedge member adapted to be secured in apermanent manner to a lcorner post and constituting in part anupst-anding wedge. The other element of the lock is in the form of aplate suitably embossed to provide two abutments spaced apart withrespect toA one another and at least one oi which abutments is shaped toprovide a vtapered opening between them. Said plate is adapted to beriveted to the side rail of the bed land when thus secured in position,the rail may be brought into a position to cause the abutments to engagewith the taf pering vsurfaces of the wedge of the other member of theconstruction, the parts being proportioned, so that as the weight on theside rail is'increased the locking action between the partsis likewiseincreased, so that instead lof tending to effect inadvertent release ofthe parts, the imposing of weight thereon serves, on the contrary, totighten the engagement between them.

The attaching plate which is secured to the side rail as described formsa salient feature of this invention. It is of pronouncedly novelconstruction and is formed by offsetting the plate and embossing it insuch manner as to produce the abutments to which I have referred.

The embossing operation is in practice carried out by a die and theshaping of the plate may be accomplished in one operation, therebyminimizing the manufacturing costsv without sacrifice to strength orappearance. The'whole construction can be readily fabricated from heavygage metal in an entirely automatic and economical manner.

Features ofthe invention, othcrtha-n those adverted to, will be apparentfrom the here-y inafter detailed description and claims, when read inconjunction with the accompanying drawings.

The accompanying drawing illustrates one practical embodiment of theinvention, but the constructiontherein shown is to be understoodas'illustrative, only, and not as delining the limits of the invention.

Figure 1 is a side elevation of the bed lock embodying the presentinvention.

Figure 2 is a plan view of the construction shown in Figure 1.

Figure 3 is a section on the line 3-3 of Figure 1. Y

Figure 4' is a horizontal section through the center of the attachingmember which is associated with the sidev rail of the bed and thismember is shown in Figure 4 as removed from the side rail and in sectionon the line `iw-4: of Figure 1.

Figure 5 is a. section on the line 5-5 of Figures 1 and 4; and,

Figure 6 is a section on the line 676 of Figuresv 2 land 4. i Referringkto the drawings, l designates one'of the posts of abcd and 2 one of theside rails. The 'lock 'of vthis invention, as shown in the drawings,embodies an attaching member 3 provided at its basev with a flange 4adapted to conform tothe cross sectional shape ofthe post l and securedthereto by bolts or rivets 5, as shown in Fi res 1 and 2. The bol-ts orrivets 5, preferab y pass through a back plate 6 positioned interiorlyof the post 1, so as to furnish rigid attachment ofthe flange 4 to saidpost. From one .stantially parallel to said side rail.

tiecured to the side rail 2 by means Aot' rivets 8 and 9 is acooperating attaching member 10 which terms an important part oi" thisinvention. This attaching member is in the form of a plate which isoiset, as shown at 11, to torni the body of the plate in two distinctplanes. That is to say, the portion 12 ci the plate is adapted to lie.over against one flange oi' the side rail, while the remaining portion13 is spaced `a distance 'from the side Vrail substantially equal to thethicknv ot the wedge i" and extends sub- This portion 13 may thereforebe referred to as the overlying port-ion oi the plate inasmuch as itover-lies the wedge 7, as clearly appears from Figure Q. Stampedinwardly adjacent the free end ot' the portion 13 ot' the plate is aboss 14, one face 15 of which constitutes an abutment. To produce thisboss, the plate is embossed or stamped inwardlyffor a distancesutiicient. to cause it tol engage with the tace of the siderail,4 andsaid boss is `per-l forated at 16, so that the rivets 8' can be passedthrough the perforations thusv formed and headed over totightly bind theboss to the side rail, l

In the operation of' oii'setting the plate at 11 as described, a die isused which will so emboss the pla-te to 'form on the inner tace of theplate and at the offset an abutment 17. rlhis abutment is preferablyshaped, as shown in Figure 1, to embody two parts 1Ta and 1T, which areout Iout alinement and form 'with one another an angle of greater than180 degrees. so that the space between the two parts of the abutment 17and the abutment 15 converges toward the center line of theside rail 2,as is clearly ap parenti `from Figure 1. By this arrangement, the lsiderail may be brought either into the posi ion shown in Figure 1s whereinthe wedge '7 will cooperate in the wedging engagement with the abutment15 and the 'abutment portion 17h, ver said rail may be re-l versed orinverted, so that the abutment -por tion-Ttolz the loch-at the other endof the sideirailfwill cooperate vwith the abutment 15 to receive andgrip the wedge. In either case va'tight wedging engagen'ient of theparts will 3 y ineens-i the plate 10 which extends between the abutmentsserves totie the abutments together and eliminates any bending stressesto which the rivets might otherwise be subjected.

y rIhe foregoing detailed description and the drawing deal` with theinvention in in its prerljerred practical form. I am aware, however,lthat slight modifications in the illustrative showingmay be made withoutdeparting from the spirit of this invention; that is lo say, the bedpost, 1 may be made of other shapes than cylindrical andthe cross anglesupport 18, while shown as secured in place by the lower rivet 5 may beotherwise held in position. Furthermore7 the plate 1() is shown asflared outwardly at 19 lo permit the wedge to be guided into engagementwith the abutments 15 and 17 (see Fig. 6)., but this flaring may beomitted if desired. For these reasons7 the, present invention is to beunderstood as fully commen` sui-ate with the appendedclaims.`

Having thus fully described the invention, what I claim as new anddesire to secure by Letters Patent is:

l. In a bed lock, thecombination with a corner post and a side rail, ofa wedge member permanently secured to the corner post and embodying anupstanding wedge, and an attaching plate permanently secured to the siderail and embossed to provide spaced apart abutments forming between thema constriction tapering both upwardly and downwardlyto permit ,tightengagement ot .the wedge with said abutments when engaged thereby ineither direction', and rivets passing through the embossed portions ofthe plate and through the side rail to secure said plate to the rail.

2. In a bed lock, the combination with a corner post and a siderail, ofan attaching vmember mounted on the corner post and emwith saidabutments, when engaged thereby in either direction, and rivets passeddirect ly through the embossed portions of the 'plateand through theside rail for rigidly securing said embossed portions directly to therail.

3. In a bed lock, the combination with a corner post and a side-rail, otvan attaching member lmounted on the corner post and embodying anupstanding wedge, an attaching plate extending .longitudinally of theside rail and having longitudinally spaced embossed portions stampedlaterally from the body of .the plate, intermediate its upper and loweredges, and forming spaced abutments to collectively constitute atapering the body of the plate, intermediate its upper and lower edges]`and forming spaced abutments to collectively constitute a constrictiontapering both upwardly and downwardly to permit tight engagement of thewedge with said abutments When engaged thereby in either direction, andrivets passed directly through the embossed portions in close proximityto the abutments and through the side rail, for rigidly securing theembossed portions tightly to the rail.

In testimony whereof I have signed the foregoing specification.

LOUIS N. LUMB.

